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(11)

EP 2 301 080 A2

(12)

(88) Date of publication A3: 08.04.2010 (43) Date of publication: 30.03.2011 Bulletin 2011/13 (21) Application number: 09750183.7 (22) Date of filing: 15.05.2009

(51) International Patent Classification (IPC):  H01L 31/05(2006.01) H01L 31/048(2006.01) H01L 51/42(2006.01) B32B 37/15(2006.01) H01L 31/042(2006.01) E04D 13/18(2006.01) H01L 31/0236(2006.01) (86) International application number: PCT/IB2009/005728 (87) International publication number: WO 2009/141726 (26.11.2009 Gazette 2009/48)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 20.05.2008 IT MI20080927 (71) Applicant: COSTRUZIONI MECCANICHE LUIGI BANDERA S.p.A. 21052 Busto Arsizio (Varese) (IT)	(72) Inventors: BANDERA, Franco I-21052 Busto Arsizio (Varese) (IT) VENEGONI, Enrico I-21052 Busto Arsizio (Varese) (IT) DELLA ROSSA, Giovanni I-21057 Olgiate Olona (Varese) (IT) CAL, Roberto I-22073 Fino Mornasco (Como) (IT) (74) Representative: Simino, Massimo  Cuccia & Simino S.r.l. Corso di Porta Romana, 23 20122 Milano 20122 Milano (IT)